US 12,030,503 B2
Vehicle movement sensor
Tomasz Sulkowski, Cracow (PL)
Assigned to Aptiv Technologies AG, Schaffhausen (CH)
Filed by Aptiv Technologies AG, Schaffhausen (CH)
Filed on Feb. 28, 2022, as Appl. No. 17/652,916.
Claims priority of application No. 2103232 (GB), filed on Mar. 9, 2021.
Prior Publication US 2022/0289202 A1, Sep. 15, 2022
Int. Cl. B60W 40/06 (2012.01); G06V 10/44 (2022.01)
CPC B60W 40/06 (2013.01) [G06V 10/443 (2022.01); B60W 2420/40 (2013.01); B60W 2520/10 (2013.01); B60W 2520/14 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A vehicle movement sensor comprising:
an optoelectronic sensor configured to,
receive light from a first sample area on a road surface at a first location relative to a vehicle and generate a pixel pattern image of road surface irregularities in the first sample area, and
receive light from a second sample area on the road surface at a second location relative to the vehicle, wherein the second location is a different distance from the optoelectronic sensor than the first location; and
a processor configured to,
sample pixel pattern images of the first sample area and pixel pattern images of the second sample area, and
determine movement of the vehicle using digital image correlation of sequential sampled pixel pattern images of one of the first sample area or the second sample area that is selected based on a vehicle speed of the vehicle.